The way you win a war is to kill more of the bad guys than he kills of yours. It's called removing the will to fight and resist. Yes, there are selected individuals that you take prisoner, and then interrogate. Bad guys that surrender are captured and interrogated. Selected leaders or key personnel are singled out as high priority targets for capture.

The 50 bad guys in a building firing at you get either a drone strike, artillery strike, Abrams 120mm Heat Round, or tactical airstrike, then a boots on the gound assault to clean out the remaining folks that are resisting, and to take as prisoners those that are no longer capable of resisting or those who surrender.

He who hesitiates in combat is lost. If you kick a door and wait to see who is going to surrender, you will lose comrades or your own life.

The mission dictates the tactics. The objective dictates the mission specifics. If the objective is prisoner taking, you employ tactics accordingly. If the mission is to secure an objective, or remove a threat, the tactics are altered accordingly.

Patton:
“No poor ******* ever won a war by dying for his country. He won it by making other ******** die for their country.”

“May God have mercy upon my enemies, because I won't.”

"When you put your hand into a bunch of goo that a moment before was your best friend's face, you'll know what to do."